Approval Details

Valid E.O.


This Executive Order approved the specified parts on on December 17, 2009.
As of Tuesday, April 23rd, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1996-2006 model-year off-road diesel engines of 20.0 liters or less displacementThe device can be installed on engines operated using California diesel (15 ppm sulfur), PuriNOx water emulsion fuel based on California diesel, or biodiesel blends containing no more than 20 percent biodiesel by volume.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-420U-15
  • Executive Order 420U-15 / D420U-15
  • ARB # D-420U-15
  • Executive Order No: D-420U-15
  • C.A.R.B. No. D-420U-15
  • Resolution D-420U-15
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-420U-15 PDF

D-420U-15 Document:

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